Chelsea Football Club is delighted to announce that we have signed Inter Milan winger Ricardo Quaresma on loan until the end of the season. The Premier League have confirmed the deal.

Quaresma joins us as the sixth Portuguese player in the first team squad, following the summer arrivals of José Bosingwa and Deco, who have also worked under manager Luiz Felipe Scolari at international level.

The 25-year-old winger can play on either flank, with his qualities of speed and finesse a regular problem for opposing defences.

Born in Lisbon on September 26, 1983, Ricardo Andrade Quaresma Bernardo began his career with local club Sporting, making his debut as a 17-year-old.

While at Sporting, he worked his way into the first team and became a regular during the championship-winning 2001/02 season alongside Cristiano Ronaldo.

He made 59 league appearances in two seasons, scoring eight goals, before Barcelona approached for his services in the summer of 2003, paying six million Euros to secure his signature.

His time at the Catalan club yielded only a handful of starts, and an injury towards the end of the season saw the youngster miss out on Euro 2004 in his home country. Following the tournament, he returned to Portugal with Porto, just as Deco was heading to Barcelona.

He quickly settled, scoring in the 2004 Uefa Super Cup defeat against Valencia, and was regarded during his four-year stay at Porto as one of the league's most potent weapons.

Quaresma's form in the 2005/06, 2006/07 and 2007/08 campaigns helped seal a succession of league championships, and regular Champions League football.

He is no stranger to Stamford Bridge, having played four times as a Porto player against the Blues, twice in 2004/05 and twice again two years later.

In March 2007, Quaresma opened the scoring at the Bridge, before goals from Arjen Robben and Michael Ballack sealed our progression into the quarter-finals.

After 124 league appearances and 24 goals, Quaresma was bought by Inter Milan last summer, one of José Mourinho's first signings for the club.

Now, the 5'8 playmaker has the opportunity to rekindle his relationship with Scolari, who utilised his services in Euro 2008, where he scored the most recent of his three international goals, in a 3-1 win over Petr Cech's Czech Republic side. He has 25 caps.

Quaresma becomes our first and only signing of the winter transfer window, and will stay with us until the end of the season.

José Bosingwa agreed terms with Chelsea Football Club on May 12 and officially joined after Euro 2008. He agreed a three-year contract.

The 25-year-old joined us from Porto, where he spent the past five seasons since signing from Boavista in 2003.

While with Porto, he played alongside our own Ricardo Carvalho and Paulo Ferreira, and established himself as first choice right-back upon Ferreira's switch to Stamford Bridge in the summer of 2004.

Used just 13 times in his first season by José Mourinho, Bosingwa became a regular during 2004/5 and has kept his place since, playing over 100 times.

He played twice against Chelsea, at Stamford Bridge in September 2004 in our 3-1 group stage win over the reigning European champions (he was an unused sub for the away fixture) and in the first leg of last season's first knockout round, a 1-1 draw in Porto with Andriy Shevchenko scored for the Blues.

However injury ruled Bosingwa out of the second leg when Chelsea progressed.

The player's consistency for club allowed him to break into the Portugal squad, where he faces a battle with Valencia's Miguel for the starting berth, Ferreira a regular on the left, while Carvalho plays in the centre.

Born in Mbandaka, Congo, the same birthplace as Claude Makelele, José Bosingwa da Silva moved to Portugal at an early age, and was recruited by Boavista where he developed his all-round game - solid at the back, energetic down the flanks and incisive in attack. Used mainly in defence now, he can also be employed as a right-sided midfielder.

He made 41 league appearances in two seasons for Boavista before joining Porto in the summer of 2003.

He has also represented his country at under-21 level, as well as playing in the 2004 Olympics in Athens, and to date he has four Superliga championships and a Portuguese Cup to his name, as well as a Champions League winners' medal from 2004, when he was an unused substitute as Porto triumphed 3-0 against Monaco.

In the season just finished, he was part of a championship-winning Porto side that conceded just 13 goals in 30 games.

Bosingwa became the fourth Portuguese in our first team squad, with Hilario also involved, and quickly established himself as first choice right-back with his energetic displays on the wing. Demonstrating a keenness to get forward and support attacks, he was instrumental in our early season form, creating a host of chances for team-mates while also scoring his first Chelsea goal at Stoke in September.

This was followed by a long-range, left-footed curler at West Brom in mid-November, as Bosingwa continued to impress into the new year with relatively little challenge for his place.

Injury on international duty ruled him out for a number of weeks in April, but he returned as energetic as ever, even filling in on the left-hand side of defence to mark Lionel Messi in Barcelona after passing an audtion at West Ham to cover Ashley Cole's absence. He performed superbly, keeping the Argentine's impact to a minimum, with the help of Florent Malouda, who was also working to limit Dani Alves's contribution.

Returning to the right, he will be joping to continue that form in the second leg and beyond.